1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ba1ea1b12f7724c127acd7b6d4ebd0eefd8822113d42775164a7a7770df43cf. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/92376598-18d9-4ef1-add3-7e8a5c54d9f8.json and https://artists.proofprofile.net/proofs/artist/92376598-18d9-4ef1-add3-7e8a5c54d9f8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Allegro concertante: I. Intrada. Andante
Havangsvit Suite: III. Impromptu. Andante
Kurt Atterberg: Concerto for Violin, Cello and Orchestra - Barocco - Sinfonia per archi
Barocco, Suite No. 5 for Chamber Orchestra, Op. 23: I. Entrata
Barocco Suite No. 5 for Chamber Orchestra, Op. 23: II. Sarabanda
Barocco Suite No. 5 for Chamber Orchestra, Op. 23: III. Gavotta
Barocco Suite No. 5 for Chamber Orchestra, Op. 23: IV. Pastorale e Gagliarda
Barocco Suite No. 5 for Chamber Orchestra, Op. 23: V. Siciliana
Barocco Suite No. 5 for Chamber Orchestra, Op. 23: VI. Giga
Concerto for Violin, Cello and Orchestra, Op. 57: I. Bar 1
Concerto for Violin, Cello and Orchestra, Op. 57: II. Bar 171
Concerto for Violin, Cello and Orchestra, Op. 57: III. Bar 268
Concerto for Violin, Cello and Orchestra, Op. 57: IV. Bar 342
Concerto for Violin, Cello and Orchestra, Op. 57: V. Bar 434
Sinfonia per archi, Op. 53: II. Allegro molto
Sinfonia per archi, Op. 53: III. Tranquillo
Sinfonia per archi, Op. 53: IV. Allegro molto e ritmico
Wirén: Serenade - Sinfonietta - Symphony No. 4 - Music for Strings
Serenade for String Orchestra, Op. 11: I. Allegro molto
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc41565e7078194cb011edbb806d27cae3229116b6230770b004550dcf3ccb8f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA72186295.
Serenade for String Orchestra, Op. 11: II. Andante espressivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9af54c0fb939acc0c56e0397e13ead2c78a72a7ca3857c8bda80dd26b5f1bb9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA72186296.
Serenade for String Orchestra, Op. 11: III. Scherzo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x082a0263d0d2302285ac26e031b88cd65ae50bfc8c3216f3725d7bad3612e794. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA72186297.
Serenade for String Orchestra, Op. 11: IV. Marcia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3e51fd7b53bf30f2e42148e63ada31cc30b08a42a0a54c20b7920a65e183ff6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA72186298.
Sinfonietta in C Major, Op. 7a: I. Molto allegro ed energico
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe363be6dfa8c9414d6457c9090dbbedbbeeb6b4a45f6c8e4aab53eeea9171c39. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA72186299.
Sinfonietta in C Major, Op. 7a: II. Andante espressivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3be70ad520dadace351a9952bda4635c06d0390157194eae2bab0b27694c883c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA72186300.
Sinfonietta in C Major, Op. 7a: III. Molto allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x250d0cc9625602cc18adb9494160e86d0aed80dea39e31c2329175552a5c7860. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA72186301.
Symphony No. 4, Op. 27: I. Tempo moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51ab8a983284de9fca007e0c59cad1f363d99a3e21b0a29e892dc207d83486a7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA72186302.
Symphony No. 4, Op. 27: II. Molto vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7545a822fce978127f0c3d6e44cfb569454378e344705704f71455fe80c85a9c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA72186303.
Symphony No. 4, Op. 27: III. Tempo moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98ef8debf23bcfb5d9b866f933ec2972c6c6e4b3db74bf2d827d11d6dfb060a7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA72186304.
Music for String Orchestra, Op. 40: I. Moderato
Music for String Orchestra, Op. 40: II. Commodo ma espressivo
Music for String Orchestra, Op. 40: III. Tempo moderato
Music for String Orchestra, Op. 40: IV. Vivace